#ifndef ZOOMIO_H
#define ZOOMIO_H
//实现graphicview的放大缩小
#include<QGraphicsView>
void zoomIn(QGraphicsView *graphicsview);
void zoomOut(QGraphicsView *graphicsview);
void resetZoom(QGraphicsView *graphicsview);
void refresh(QGraphicsView *graphicsview);

void zoom(QGraphicsView *graphicsview,double);
#endif // ZOOMIO_H
